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Improving the Internal Validity of Non-Equivalent Group Research Designs: A Comparison of Propensity Score Analysis and Analysis of Covariance

John Fraas, Ashland University
Isadore Newman, University of Akron
Joshua G. Bagakas, Cleveland State University
David Newman, Cleveland State University

Suggested Citation

John Fraas, Isadore Newman, Joshua G. Bagakas, and David Newman. "Improving the Internal Validity of Non-Equivalent Group Research Designs: A Comparison of Propensity Score Analysis and Analysis of Covariance" Mid-Western Eduation Research Association. Columbus, OH. Oct. 2006.
Available at: http://works.bepress.com/john_fraas/24

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